I've been wondering the same thing about CSS recently. With the advent of SCSS and other CSS preprocessors our CSS files are blowing out of late, and I am start

I've been wondering the same thing about CSS recently. With the advent of SCSS and other CSS preprocessors our CSS files are blowing out of late, and I am starting to worry about parsing time. Does anyone have any good sources on a) caching of CSS parse trees b) what the latest thinking is on CSS file size, # of selectors, complexity of selectors for page load times. Thinking of writing something about this myself but I am wondering what's out there.